app.use(expressWinston.logger({
   format: format.combine(
      format.timestamp(),
      format.colorize(),
      format.prettyPrint(),
   ),
   transports: [
       new transports.File({
           filename: '/var/log/node/fe-access.log',
           maxsize: 1000000,
           maxFiles: 2,
           tailable: true,
           eol: '\r\n\r\n'
       })
   ]
}))